RCMP investgate at a home on Mission Springs Drive on Sept. 14, 2012, in Kelowna, B.C., after a 24-year-old man allegedly attacked his mother with a hammer. RCMP investgate at a home on Mission Springs Drive on Sept. 14, 2012, in Kelowna, B.C., after a 24-year-old man allegedly attacked his mother with a hammer. (Brady Strachan/CBC)

The victim of a brutal hammer attack earlier this month in Kelowna, B.C., has died of her injuries, and it's expected her son will be charged in the homicide.

Monday morning, RCMP said Kate Gilchrist, 57, had succumbed to her injuries over the weekend.

Gilchrist's son, Conor Frederick Grossmith, remains in police custody.

Grossmith, 24, had been charged with attempted murder, assault with a weapon and aggravated assault, said RCMP Const. Kris Clark.

"We'll be recommending that the charges be amended as a result of her death. And basically we'll be upping the charge from attempted murder to murder," said Clark.

Kate Gichrist was the wife of Harry Grossmith, the former executive director for the United Way of the Central and South Okanagan, who stepped down in June.